
We present ORAC-NT, a dual-channel anomaly detector for gravitational wave strain data operating without waveform templates. The detector combines RMS energy (sensitive to BBH impulsive signals) and the ORAC H energy-entropy metric (sensitive to BNS extended signals). Validated on GW150914 and GW170817 from LIGO GWOSC data.GW150914 detected via RMS at t=+0.010s; GW170817 detected via ORAC H at t=-0.260s.
